How do I erase the OS X Window screenshot to create a shadow?

Friends who use Macs should know that while pressing the command+shift+3, you can quickly screen screenshots, while pressing COMMAND+SHIFT+4, you can drag the cursor, select the area of the desired screenshot. If you press the space bar before the screenshot, you can quickly take a screenshot of a window.

You may have been very handy with these tips, but don't know if you've noticed that when you take a screenshot of a window, the screenshot always comes with the shadow (drop shadow), so today we'll learn how to get rid of these shadows.

Open the terminal window first, and then enter the following instructions

After clicking Confirm, enter the following instructions

Killall Systemuiserver

So when you screen a window, there is no shadow. If you want to regain the "shadow", simply replace "TRUE" in the first line of instructions with "FALSE" when you repeat the above action.

(▲ Remove Shadow)